Kiosks, self-checkout te mi als, ATMs, ticketi g machi es, a d ve di g machi es a e delibe ately positio ed i locatio s chose fo use co ve ie ce a d visibility, buildi g lobbies, t a sit statio co cou ses, etail e t yways, a d st eet-faci g sto ef o ts, a d these same high-visibility locatio s f eque tly featu e la ge wi dows, glass doo s, o a di ect sightli e to b ight exte io daylight. A use sta di g i f o t of a kiosk i o e of these locatio s is ofte backlit by exactly this wi dow o e t yway light behi d them, a d a sta da d dy amic a ge came a exposed fo the kiosk’s compa atively dim i te io lighti g e de s that backlit use as a da k, featu eless silhouette athe tha a ecog izable face. This is a specific a d ecu i g ve sio of a b oade backlighti g p oblem, but it is pa ticula ly acute fo kiosks p ecisely because the placeme t choices that make a kiosk co ve ie t a d visible, ea a e t a ce, ea a wi dow, i a b ight lobby, a e the same choices that c eate this backlighti g isk. The co seque ce is di ect a d p actical: a ide tity ve ificatio kiosk ca ot co fi m a use ‘s face, a age ve ificatio self-checkout ca ot captu e a usable ID photo compa iso , a d a ticketi g kiosk’s i te actio quality suffe s because the came a simply ca ot esolve the pe so sta di g i f o t of it. A came a ve do that ma kets a kiosk came a without add essi g this specific backlighti g co ditio leaves exactly the deployme t sce a io kiosks most commo ly e cou te u add essed. A O semi AR0821 HDR USB2 Se so that has o ly bee validated u de eve ly lit be ch co ditio s p ovides o eal assu a ce about pe fo ma ce o ce that came a is actually i stalled ea the wi dow o e t yway a eal kiosk deployme t f eque tly p ese ts, a d a AR0821 USB2 Sig age Se so evaluated without a ge ui e backlit test sce e leaves this exact isk u co fi med. OEMs that discove this gap o ly afte a kiosk fleet is al eady deployed ea sto ef o t wi dows face a costly came a et ofit athe tha the st aightfo wa d specificatio a p ope ly validated came a would have p ovided f om the sta t.
The Me li -821CRS add esses this backlighti g p oblem th ough the O semi AR0821 se so ‘s o boa d HDR pipeli e, which esolves both the b ight backg ou d light e te i g th ough a wi dow o ope doo way a d the compa atively dim fo eg ou d whe e the kiosk use actually sta ds, combi i g both i to a si gle f ame that p ese ves detail ac oss the full b ight ess a ge athe tha sac ifici g the use ‘s face to a silhouette. The AR0821 is a 8MP colo olli g shutte se so with ative 4K (3848 x 2168) esolutio a d a 1/1.7-i ch optical fo mat with 2.1-mic o pixels, a d its HDR a chitectu e is specifically what allows a kiosk positio ed ea b ight backg ou d light to still captu e usable facial detail o the pe so sta di g i f o t of it. This makes the came a a ge ui e AR0821 HDR Kiosk Se so platfo m, si ce the HDR validatio is pe fo med agai st ep ese tative backlit kiosk sce es athe tha o ly a co t olled, eve ly lit test e vi o me t. Vadzo co fi ms this AR0821 USB2 HDR Module behavio specifically u de wi dow-adjace t a d e t yway lighti g co ditio s, ve ifyi g that a use ‘s face emai s ide tifiable eve whe st o g daylight o sto ef o t glass sits di ectly behi d them i f ame. This qualifies the came a as a ge ui e HDR Wide Ra ge USB2 Came a, exte di g usable dy amic a ge specifically ac oss the backlit co ditio s kiosk a d sig age placeme t p ese ts athe tha o ly a labo ato y co t ast cha t. The came a co ects ove USB 2.0, a d its o boa d ISP ha dles the HDR fusio p ocess di ectly o the module, so host ha dwa e eceives a al eady p ocessed HDR f ame athe tha eedi g to pe fo m this fusio itself. Output modes i clude full 4K, 1080p, a d 720p, selectable to bala ce esolutio agai st USB ba dwidth fo the ta get kiosk o sig age wo kflow. The came a is ated ac oss a -30 deg ee C to 70 deg ee C ope ati g a ge, matchi g the e vi o me tal co ditio s typical of i doo etail, t a sit, a d comme cial kiosk i stallatio s. Vadzo validates HDR pe fo ma ce agai st eco ded sce es captu ed f om ep ese tative wi dow-adjace t a d e t yway kiosk locatio s athe tha a sy thetic co t ast cha t alo e, si ce dy amic a ge co fi med o ly u de a co t olled test patte ca still leave gaps o ce a came a e cou te s the specific lighti g geomet y a eal sto ef o t o lobby i stallatio p ese ts.
The Me li -821CRS is a AR0821 4K HDR USB 2.0 Came a built o the O semi AR0821 se so a d validated specifically fo HDR imagi g ac oss backlit kiosk a d sig age sce es. As a 4K HDR USB 2.0 Came a, it is pu pose-built fo OEMs who eed ge ui e co fi matio that thei kiosk came a esolves a backlit use ‘s face, athe tha a ge e al HDR label that has eve actually bee validated agai st a eal wi dow-adjace t kiosk placeme t. The AR0821 HDR USB 2.0 Came a desig atio eflects Vadzo’s validatio of the AR0821 se so ‘s HDR pipeli e specifically u de ep ese tative kiosk backlighti g co ditio s, co fi mi g that facial a d ide tifyi g detail holds up befo e the module eaches OEM custome s. The came a module houses the AR0821 se so , ISP, a d USB 2.0 i te face i a compact fo m facto with a sta da d M12 le s holde , fu ctio i g as a ge ui e HDR Backlit Kiosk Came a; the came a exposes exactly the capability kiosk placeme t ea wi dows a d e t yways equi es. As a 8MP HDR USB 2.0 Came a, the came a outputs full 4K HDR esolutio with the fusio p ocess ha dled e ti ely o the module, a d the AR0821 8MP HDR USB Came a desig atio specifically co fi ms this behavio ac oss the USB 2.0 i te face most kiosk a d sig age host ha dwa e al eady uses. As a 4K HDR Imagi g USB 2.0 Came a, the came a e ume ates as a sta da d UVC device o Wi dows, Li ux, a d A d oid, equi i g o p op ieta y d ive s fo evaluatio o p oductio i teg atio .
Key specs: 8MP 4K (3848 x 2168) | O semi AR0821 1/1.7-i ch 2.1-mic o pixel | Colo | Rolli g Shutte | HDR | USB 2.0 UVC | S Mou t M12 Le s | -30°C to 70°C
Ma y kiosk came a p oducts delive adequate esolutio fo a well-lit, eve ly illumi ated test sce e while leavi g ge ui ely high-co t ast, backlit co ditio s u add essed, which mea s the came a pe fo ms well i a demo but st uggles the mome t it is i stalled ea a eal wi dow o doo way. The Me li -821CRS, positio ed as a HDR Co t ast Sig age Se so , pai s full 8MP 4K colo esolutio with ge ui e HDR fusio , givi g OEMs buildi g a HDR Adaptive Kiosk Se so deployme t detail that holds up ac oss both the b ight backg ou d a d the dim fo eg ou d a backlit kiosk sce e actually p ese ts. This makes it a ge ui e USB2 HDR Se so Kit suited to i stallatio s spa i g both eve ly lit i te io kiosks a d wi dow-adjace t, e t yway-faci g locatio s.
A kiosk positio ed fo maximum visibility ea a e t a ce o a sto ef o t wi dow is exactly the placeme t most likely to backlight the use sta di g i f o t of it, a d this is ot a edge case; it is o e of the most commo lighti g co ditio s kiosk deployme ts actually e cou te . The Me li -821CRS fu ctio s as a HDR E ha ced Sig age Module specifically validated agai st this sce a io, esolvi g facial a d ide tifyi g detail o a backlit use that a sta da d dy amic a ge came a would e de as a u usable silhouette, which matte s di ectly fo ide tity ve ificatio , age ve ificatio , a d ge e al i te actio quality at exactly the locatio s kiosk OEMs most wa t to deploy. A kiosk ope ato choosi g a p omi e t e t a ce locatio fo visibility should ot have to accept deg aded ide tificatio pe fo ma ce as the t adeoff fo that visibility.
Digital sig age deployme ts f eque tly sit i the same wi dow-adjace t, high-visibility locatio s as kiosks, a d a sig age came a captu i g audie ce footage o e vi o me tal co text fo i te active co te t faces the ide tical backlighti g isk f om sto ef o t glass o e t yway daylight. The Me li -821CRS’s HDR capability fu ctio s as a ge ui e HDR Display Visio Se so i this co text, givi g sig age OEMs usable image quality ac oss both the visible co te t the display p ese ts a d a y came a-based audie ce o e vi o me tal captu e the same i stallatio pe fo ms. A sig age etwo k sta da dizi g o o e validated came a platfo m ac oss sto ef o t a d i te io locatio s avoids the i co siste t captu e quality that would othe wise esult f om mixi g came a u its suited to o ly o e lighti g co ditio o the othe .
Kiosk a d sig age host ha dwa e f eque tly al eady exists i the field with USB 2.0 po ts, a d a et ofit upg ade to add HDR capability eeds to wo k with that existi g ha dwa e athe tha equi i g a full host boa d eplaceme t. The Me li -821CRS is available as a USB2 HDR Came a fo Kiosks, co ecti g to the same USB 2.0 po ts al eady p ese t o deployed kiosk a d sig age ha dwa e, which matte s di ectly fo ope ato s upg adi g a existi g kiosk fleet’s came a capability without a p opo tio al ha dwa e ove haul at eve y locatio .
Selectable output esolutio lets a si gle Me li -821CRS se ve multiple oles withi the same kiosk o sig age deployme t. Full 4K mode captu es maximum spatial detail fo ide tity ve ificatio o fi e i te actio tasks. The 1080p mode bala ces esolutio a d USB ba dwidth fo sta da d i te active display use, while 720p mode suits lightweight a alytics o p ese ce detectio tasks that do ot equi e full f ame detail. Because eve y output mode be efits f om the same HDR fusio pipeli e, switchi g esolutio modes i t oduces o cha ge i dy amic a ge pe fo ma ce, which matte s fo automated kiosk a d sig age systems that expect co siste t behavio ega dless of which output mode a give task equi es.
The Me li -821CRS co ects to a y USB 2.0 host po t o Wi dows, Li ux, o A d oid without additio al i te face boa ds o p op ieta y d ive s, si ce the came a e ume ates as a sta da d UVC class device. Available as a HDR Kiosk Came a Kit fo evaluatio , the came a lets e gi ee i g teams co fi m HDR pe fo ma ce ac oss thei ow ep ese tative backlit kiosk sce es befo e committi g to a p oductio o de . Fo OEMs evaluati g Vadzo as a OEM HDR Kiosk Module supplie , this plug-a d-play behavio sho te s the path f om e gi ee i g evaluatio to p oductio i teg atio . As a Plug a d Play HDR Kiosk device, the Me li -821CRS is validated ac oss commo kiosk a d sig age host platfo ms. Vadzo’s positio as a HDR Kiosk Came a Supplie exte ds beyo d the came a module itself to i clude le s matchi g, fi mwa e customizatio , a d e closu e desig suppo t, while its t ack eco d as a HDR Sig age Came a Ma ufactu e cove s volume p oductio p og ams ac oss multiple se so families a d i te face types fo OEM custome s buildi g public-faci g kiosk a d sig age p oducts.
“Kiosk a d self-checkout OEMs keep specifyi g thei deployme ts fo the same locatio s, ea a e t a ce, ea a wi dow, somewhe e visible a d co ve ie t, without always ealizi g that exact placeme t backlights the use sta di g i f o t of the came a. A sta da d dy amic a ge se so e de s that use as a da k silhouette ight whe a self-checkout o ATM most eeds to see thei face clea ly. The Me li -821CRS was built to solve that specific p oblem. By validati g the O semi AR0821’s HDR pipeli e agai st ge ui ely backlit kiosk sce es, ot just a eve ly lit be ch test, we give OEMs a came a that actually pe fo ms at the wi dow-faci g, e t a ce-adjace t locatio s kiosks a e most ofte placed.” – Alwi Vi ce t, P oduct Ma age , Vadzo Imagi g.
I te active kiosks depe d o clea ly esolvi g the use sta di g i f o t of them, whethe fo a touch sc ee i te actio , a visual guida ce featu e, o a came a-based e gageme t eleme t, a d backlighti g f om a ea by wi dow o e t a ce u de mi es exactly this capability. The Me li -821CRS fu ctio s as a HDR I te active Kiosk Came a fo these systems, esolvi g use detail eve whe st o g backg ou d light sits di ectly behi d the pe so i te acti g with the kiosk. This matte s as much fo casual b owsi g i te actio s as it does fo ide tity-depe de t t a sactio s, si ce a kiosk that ca ot ecog ize a use ‘s basic p ese ce o gestu e eliably deg ades the e ti e i te actio ega dless of the specific applicatio it u s.
Self checkout te mi als depe d o clea facial captu e fo age ve ificatio pu chases a d ge e al i te actio quality, a d ma y self checkout deployme ts sit ea sto ef o t wi dows o e t yways specifically to emai visible to shoppe s. The Me li -821CRS se ves as a HDR Self Checkout Came a fo these te mi als, esolvi g usable facial detail fo age ve ificatio eve whe the te mi al’s placeme t backlights the shoppe sta di g at the checkout poi t.
ATM a d fi a cial kiosk deployme ts depe d o clea ide tity captu e fo secu ity pu poses, a d ATMs a e f eque tly i stalled i ba k vestibules o buildi g e t a ces with glass doo s a d wi dows that c eate exactly the backlighti g co ditio a sta da d came a st uggles with. The Me li -821CRS ope ates as a HDR ATM Kiosk Se so fo these systems, a d its suitability as a HDR Public Kiosk Came a exte ds to a y public-faci g fi a cial kiosk positio ed ea a e t a ce o wi dow fo visibility a d accessibility. Fi a cial i stitutio s specifyi g came a ha dwa e fo a multi-locatio ATM fleet be efit f om o e validated platfo m that pe fo ms co siste tly whethe a give machi e sits i a fully e closed vestibule o di ectly beside a glass e t a ce.
Digital sig age deployme ts i co po ati g came a-based audie ce captu e o e vi o me tal co text depe d o usable image quality ega dless of how much backg ou d light a sto ef o t wi dow o e t yway i stallatio p ese ts. The Me li -821CRS fu ctio s as a HDR Digital Sig age Module fo these deployme ts, givi g sig age etwo ks co siste t captu e quality ac oss i stallatio s spa i g both dim i te io locatio s a d b ight, wi dow-adjace t sto ef o ts.
Ve di g machi es a d ticketi g kiosks i c easi gly i co po ate came a-based featu es fo age ve ificatio , p omotio al co te t, o use i te actio , a d these u its a e f eque tly placed i t a sit co cou ses, etail e t a ces, a d othe high-visibility locatio s that sha e the same backlighti g isk as othe kiosk catego ies. The Me li -821CRS ope ates as a HDR Ve di g Machi e Came a fo ve di g deployme ts a d a HDR Ticketi g Kiosk Came a fo ticketi g i stallatio s, givi g both catego ies the same HDR pe fo ma ce validated agai st ge ui ely backlit, high-visibility placeme t co ditio s. Ope ato s ma agi g a mixed fleet of ve di g, ticketi g, a d othe kiosk fo mats be efit f om sta da dizi g o o e came a platfo m validated ac oss this full a ge of deployme t sce a ios athe tha qualifyi g sepa ate ha dwa e fo each machi e catego y.
The Me li -821CRS AR0821 4K HDR USB 2.0 Came a built o the O semi AR0821 se so is available ow fo evaluatio a d p oductio o de s. Evaluatio kits i clude the came a module, M12 le s, USB 2.0 cable, a d platfo m d ive docume tatio , with o mi imum o de equi eme t. E gi ee i g teams ca co fi m HDR pe fo ma ce di ectly ac oss thei ow ep ese tative kiosk a d sig age locatio s befo e committi g to a p oductio bill of mate ials, which matte s mo e fo this came a tha a datasheet dy amic a ge figu e alo e could co fi m, pa ticula ly fo i stallatio s pla ed ea wi dows, e t a ces, o othe b ight backg ou d locatio s, a d ca validate this behavio at the specific time of day thei kiosk actually expe ie ces peak backlighti g, si ce backlighti g seve ity ofte va ies mea i gfully betwee mo i g a d afte oo depe di g o wi dow o ie tatio . B owse the full a ge of kiosk a d digital sig age came a optio s at Vadzo’s website o co tact Vadzo at
Vadzo Imagi g is a global p ovide of embedded visio solutio s a d delive s high-pe fo ma ce came a tech ologies a d imagi g platfo ms fo applicatio s i obotics, i dust ial automatio , UAVs, edge AI, a d medical systems. Its p oducts a e desig ed fo seamless i teg atio with leadi g embedded platfo ms. Vadzo suppo ts custome s th ough ha dwa e customizatio , fi mwa e developme t, a d module-level d ive s, e abli g faste developme t a d deployme t of visio -based systems ac oss USB, MIPI, GigE, Wi-Fi, a d Se Des came a i te faces.
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